名词
中文翻译：过滤
同义词：
['filtration', 'filtration', 'purification']
例句：
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1. Thewater is being filtered through a fine mesh to remove impurities.
水正在通过细网进行过滤，以去除杂质。
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2.The process of filtration is crucial for the treatment of wastewater.
过滤过程对于废水处理至关重要。
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3. The filter is designed to prevent particles from entering the system.
过滤器的设计是为了阻止颗粒进入系统。